Joke of the week

A man walks into a pet store and asks the shop attendant for 10 bees. The attendant obliges and begins to count the bees into a tub "1 bee, 2 bees, 3 bees, four bees, five bees, six bees, seven bees, eight bees, nine bees, ten bees, eleven bees, There you go, sir" and he hands them over.
The man responds "I asked for ten, why have you given me eleven?"
To which the shop attendant replies "oh, that last one, that‘s a freebie"